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        www.成人,天天综合亚洲 ,中文精品字幕人妻熟女,国产家庭乱伦,97福利,精品?国产区一区二,亚洲成人小说,国产一区二区三区视频
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        Features cap head comparison
        Release Time:2011-12-19  Views :
        Caps and head are very similar in appearance, as well as colleagues said today as the head of the sub-image pan. Caps and head the main difference between them on the inside diameter size, and scope. In this paper, pipe caps and head their own characteristics compared as follows:
         
        Just plug cap pipe, DN will use more than 300 head in place, if confined to strength check. Caps and head shape similar to stainless steel head with more than, cap size is relatively small and can be forged; head size is relatively little large, generally use pressed steel, pipe caps are generally used for the ends of the tube, with head in up and down (vertical devices) or parts of left and right ends (horizontal equipment) container device;
         
        Head is the inner diameter, such as 1 meter, refer to the inner diameter of the cap portion of the transition is not a requirement (unlike standard oval), general manual can only be found in the diameter and length, and a long straight edge portions .
        Key Words : 封頭
        Products
        Elliptical head
        Elliptical head
        Butterfly head
        Butterfly head
        Spherical head spin edge
        Spherical head spin edge
        Flat Head
        Flat Head
        Spherical head
        Spherical head
        Bow bottom head
        Bow bottom head
        Conical head
        Conical head
        Spherical cap shaped head
        Spherical cap shaped head
        Insulation panel
        Insulation panel
        Expansion Joints
        Expansion Joints
        Jacket (cylinder) rotation side
        Jacket (cylinder) rotation side
        Manhole flange
        Manhole flange
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        Add : 208,Zhanhong Road,Dushan,Longwan CentralIndustry,Wenzhou
        Tel : 086-577-86923687 85981288  Fax : 086-577-86913687
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